document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=142906>Question 142906</A>: <I><SPAN STYLE=\"word-break: break-all;\"> this problem isn't from a book. It simply says \"solve\"<BR>\n" );
document.write( "a^4-5a^2+4=0   Can you help me with this? Thank you, Anne </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #103983 by </B><A HREF=/tutors/aboutme.mpl?userid=vleith><B>vleith(2983)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vleith><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=103983\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Anne, I bet you can solve this equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%5E2+-+5b+%2B+4=0 ALIGN=MIDDLE  ALT=\"b%5E2+-+5b+%2B+4=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "You would factor and get<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28b+-+4%29%28b+-1%29+=+0+ ALIGN=MIDDLE  ALT=\"%28b+-+4%29%28b+-1%29+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" > and then solve for b\r<BR>\n" );
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document.write( "So how is the given problem different than the one above? If you set <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b+=+a%5E2 ALIGN=MIDDLE  ALT=\"b+=+a%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, they are the same.\r<BR>\n" );
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document.write( "Thus<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E4-5a%5E2%2B4=0+ ALIGN=MIDDLE  ALT=\"a%5E4-5a%5E2%2B4=0+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28a%5E2+-4%29%28a%5E2+-1%29+=+0+ ALIGN=MIDDLE  ALT=\"%28a%5E2+-4%29%28a%5E2+-1%29+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Solving yields a^2 = 4  and a^2 = 1<BR>\n" );
document.write( "Take the square roots and you'll get 4 solutions.\r<BR>\n" );
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document.write( "Make sense?\r<BR>\n" );
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document.write( " </SPAN>\n" );
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